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Quick Details

  • Grade: D2 ( 1.2379 )
  • Standard: AISI, ASTM, GB
  • Thickness: 4.0mm ~
  • Width: 710mm approx.
  • Length: on request
  • Place of Origin: Jiangsu, China (Mainland)
  • Brand Name: Changjiang
  • Model Number: D2 ( 1.2379 )
  • Application: industrial cutting blades etc
  • Technique: Hot Rolled
  • Special Use: Mold Steel
  • Surface: black or pickled, shot blasted or machined
  • Dimensions: Customized

Packaging & Delivery

Packaging Details Seaworthy packing, Non - fumigation pallets with waterproof.

Cold work tool steel plates D2 ( 1.2379 )


AISI D2 ( 1.2379 ) Cold Work Tool Steel air or oil hardening, with maximum dimensional stability during heat treatment,

offering very high hardness and abrasion resistance. Generally supplied annealed to HB 250 max.


Typical chemical analysis ( in weight % )



Related specifications

GB Cr12Mo1V1
AS 1239D2A
ASTM A681D2 UNS T30402
BS 4659BD2
BS EN ISO 4957X153CrMoV 12
JIS G 4404SKD 11



X155CrVMo 12- 1


Typical Applications:

Deep drawing and forming dies, cold drawing punches, hobbing, blanking, lamination and stamping dies,

shear blades, burnishing rolls, master tools and gauges, slitting cutters, thread rolling & wire dies, extrusion dies etc.


Heat treatment


at 900°c – 1100°c

Cool slowly and anneal immediately



at 830°c – 860°c

Cool in furnace


Stress Relieve

at 650°c – 700°c

Cool in furnace or still air



Preheat at 650°c – 850°c Raise to 1000°c–1050°c

Cool in air, oil or into hot bath held at 500°c – 550°c and then air cool



at 150°c – 400°c Cool in still air

Triple tempering recommended


Typical Hardness / Applications – Air cooled at 1000°c-1050°c & tempered.

TemperHRCTypical applications
150°c63 - 64 Wire drawing, lamination and cold extrusion dies
 62 - 64 Deep drawing dies, moulding dies for abrasives, gauges
200°c62 - 63 Knurling tools, thread rolling dies
 61 - 63 Blanking dies and punches, forming dies, burnishing rolls
220°c57 - 62 Cold drawing punches, hobbing dies
300°c58 - 59 Stamping dies, shear blades, plastic moulds and inserts
400°c57 - 58 Cold forging dies and forming rolls

*  Heat treatment and typical hardness for guidance only


We are looking forward to your enquiries.

Please call +86 151 9025 7143, skype: paul_luhongxiang or send an email to

export @ ahoneststeel dot com

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